Cooper AT3 XLT Review

Posting a follow up on my experience with the Cooper AT3 XLT’s I purchased in July. I went with 275/70/18’s. Stock ride height truck and I haven’t experienced any rubbing.

On Road: Tires are very quiet at hwy speeds. Some additional body roll compared to the HT tires I had before. No noticeable difference in acceleration. As for weather, its been unusually dry in the Pacific NW this year, but the few chances I’ve had to drive in the rain have been uneventful. I did see a loss of 1-1.5 MPG’s and have averaged around 15 on my daily commute.

Off Road: I’m not a serious off road driver, but have been happy with the performance so far. Probably driven 120 or so miles on Wa forest roads over the summer and the only issue I had was a large screw puncturing a tire while driving on a forest road near Mt Baker (Discount Tire certs are worth it!). Tire had to be replaced, but I’m impressed that it held up to screw as well as it did. Otherwise, no slippage on steep trail sections or wet areas. Haven’t had it in deep mud or sand yet, but I’m headed to the coast in November and will definitely drive it on the beach for Razor clam digs!

Overall, I have been very happy with my purchase. For the money, I think these tires are hard to beat!

 

Been running AT3 XLT on my truck for a couple sets now. Pleased with performance and wear, as well as ride and noise.
I’ve had them in stock 275/55-20 size and more recently in 275/65-20 size.


That said, I’m going to try Falkens next when I go to 285/75-18.

 

I have the Discount Tire version, the ATPII, no complaints as of yet.

 

White letters out! Nice...

I've also run a set of them in 275/70R18 and was very pleased with them. I ran them through just about everything you would dare to push a mostly stock truck and AT tire through and the worked just fine, sometimes even excelling. 100+ degree days of freeway driving towing a maxed out flatbed to 3 feet of fresh powder that I couldn't even open my door to get out, to muddy rutted two tracks and they did it all. Got 50k miles out of them with useable tread left (4-5/32's) but winter was coming and I swapped them out. I tried Toyo's new AT3 but they hummed and drove me nuts so I went back to AT3 XL's in 275/65R18. They don't make the XLT in that size; the XL is identical construction except for the sweet white letter sidewalk that the XLT has.

Try messing with your tire pressure in order to mitigate the body roll a little. The 275/70 has a taller sidewall so it will sometimes roll over a little more, but I usually find the tire shop to be inflating them to what the door placard says at 30-33 PSI. But since it is an LT 10 ply instead of P rated 4 ply, it requires more pressure to carry the same load (as well as the ability to carry even higher loads with higher pressure). I ran 42-46 PSI when not towing, and aired up as needed when towing - usually 50-55 psi just for better handling. Technically, at 46 psi, you should meet or exceed the tire load spec'd on the door sticker.

 

Good call on the tire pressure! Had them at 33 when first put on. Increased to 40 after about a month and it definitely helped with body roll and overall stability. I’ll probably take your advice and increase to 46 when I get a chance.